ELETTRA, Trieste, Italy

The circular polarization (CIPO) beamline at the Elettra synchrotron (Trieste, Italy) operates in the VUV-SXR range with radiation from a combination permanent magnet-electromagnetic elliptical wiggler [94, 95]. This does not achieve full circular polarization in the VUV region, but rather an elliptical output with principal axis lying in the horizontal plane (ii > 0, 2 = 0, < 1). 

Italy ADONE, Instituto Nazionale di Fisica Nucleare (INFN), via E. Fermi 40, 00044 Frascati, Rome, Italy. Director E. Burattini ELETTRA, Sincrotrone Trieste, Padriciano 99, Trieste, Italy. Head of Scientific Division L. Fonda... 

The first high-power THz CSR demonstrations were performed at an infrared FEE [13], showing that short electron bunches can naturally produce significant THz powers. More recently, a time-resolved THz pump and VUV probe beamline has been built at the FLASH facility that is the world s first soft x-ray FEE [71]. This beamline uses a THz undulator in line with the VUV lasing undulator source and overlaps the two pulses at the sample with an adjustable time-delay. The success of this beamline has led to plans and explorations for THz beamlines at the FERMI ELETTRA FEE in Trieste, Italy, as part of the SwissFEL project plans in Switzerland, as well as others. 

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